In addition to the title page, the 1930 Plat-Book contains three indices and 48 detailed map plates of the city of Trenton, and 6 detailed map plates and one page containing three indices for the borough of Princeton. Plate 4 of the 1930 Real Estate Plat-Book, includes parts of Trenton's Wards 1 and 3. The map scale for this plate is 1" = 50'.